How do you install a Kerdi membrane on a shower wall?
Quote from the video:
Quote from Youtube video: First in order to help prevent premature drying or skinning of the thin-set mortar apply a thin layer of mortar to the wall with the flat side of the trowel to produce solid contact with the surface.
What do you attach KERDI-BOARD to?
Application: The 1/2″ thick (12.5 mm) KERDI-BOARD can be applied over existing gypsum or masonry walls, wood stud framing, and other finished wall surfaces for bathtub and shower surrounds.
Can I use KERDI-BOARD instead of cement board?
If you are using Kerdi Board correctly and following the manufacturer’s recommendations, you can also use it as a waterproof barrier. The other thing you find with Kerdi Board is that it has more uses than Cement Board. People will often use it as a waterproof barrier or even a kitchen countertop underlayment.
Can you put Kerdi on drywall?
So, is Kerdi safe to use on drywall? Yes! In fact, it’s advised to use this product on drywall in your bathroom before laying tile and other materials. Without a waterproof membrane like Kerdi, water and moisture can seep through grout, tile and other materials and end up damaging wood studs and subfloor.
Can you put Kerdi membrane over cement board?
Yes,Kerdi can be installed on drywall or cement board. However if installed on drywall it is only protecting one side. The back side of the drywall fails and it is just as bad or worse than if it had an issue on the tile side.
Can you install Schluter over cement board?
Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems.
Can you put KERDI-BOARD over plywood?
The sheet has limited gap-bridging capability, allowing it to be used over seams in drywall or plywood, as well as surface fissures in plywood. The Kerdi membrane system requires a 2” overlap at all seams; either with the membrane itself overlapping adjacent piece or with the use of Kerdi-Band tape.
Is KERDI-BOARD waterproof on both sides?
Material properties and areas of application Schlüter®-KERDI-BOARD is waterproof and can withstand all chemical stresses that typically occur in conjunction with ceramic tile coverings.
Is KERDI-BOARD waterproof?
Waterproof, multifunctional tile substrate and building panel. Schluter ®-KERDI-BOARD is a multifunctional tile substrate and building panel, which can also be used in bonded waterproofing assemblies with tile.
Can I put Schluter membrane over drywall?
Yes. Once you install KERDI over the drywall panels, they will be completely protected from the water and vapor in your tiled shower.
Can I install Schluter membrane over drywall?
No. It is not necessary to tape the joints between drywall panels before installing KERDI. If you must tape the joints per fire code requirements, make sure to apply a latex primer over the taped joints before installing KERDI.
What Thinset do I use with KERDI?
Schluter SET™, ALL-SET™, FAST-SET™ or an unmodified thin-set mortar must be used to construct all KERDI seams to ensure watertightperformance of the system.
What happens if you use modified thinset on KERDI?
Modified thinset mortars aren’t recommended for use with Kerdi because they must dry out to gain strength, whereas the membrane inhibits drying, which can lead to unpredictable results. For example, if a shower is used before the mortar has cured properly, leaks and polymer leaching can occur.
Why does KERDI require unmodified thinset?
Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. Since KERDI is impervious, it does not deprive the mortar of its moisture. This allows the cement to properly hydrate, resulting in a strong, dense bond coat.
How long should KERDI dry before tiling?
Wait 24 hours after the membrane (i.e., Schluter®-KERDI-BAND and Schluter®-KERDI) installation is complete to allow for the final set of the mortar and to ensure waterproof performance of the assembly at seams and connections before water testing.
Can you tile over KERDI membrane immediately?
Once the KERDI membrane, including seams, corners and protrusions have been completely bonded and, therefore, waterproofed, the assembly is ready to be tiled. No wait time is required.
How do you put tile on a KERDI-BOARD?
To install tile on Kerdi shower walls, begin by applying thinset mortar to the walls using a trowel. Comb notches into the thinset and firmly embed your tiles into the thinset mortar. Use tile spacers and a laser level to ensure even spacing between tiles.
Can you tile over Kerdi shower pan?
Unlike shower pan liners in traditional assemblies, KERDI is a bonded waterproofing membrane that allows for the direct application of tile with thin-set mortar.
Can I use Kerdi board on shower floor?
With the KERDI-SHOWER-TT thin shower tray on a wood subfloor, you can build up the rest of the bathroom floor by installing either a 5/8″ or 3/4″ plywood/OSB panel on top of the wood subfloor along with DITRA or another Schluter®-Systems uncoupling membrane.
Is Kerdi shower pan sloped?
Kerdi-Shower-T is a prefabricated sloped shower tray with integrated Kerdi waterproofing. It is lightweight and made of expanded polystyrene. The shower tray eliminates the need for a mortar bed making installation quick and easy.
